1. PROTISTS
CHAPTER 19

2. KINGDOM PROTISTA (most diverse kingdom)
Aquatic
All are eukaryotic
Unicellular or multi-cellular
Microscopic or very large
Heterotrophic or autotrophic
Plant-like, animal-like or fungus-like

3. PROTOZOA (singular: protozoan)
Animal-like protists
All are unicellular heterotrophs
Classified by how they move
Move by means of cilia, flagella, pseudopods
Reproduce asexually -(Binary fission) - some sexually (Conjugation)
Some are parasitic
sporozoans

4. AMOEBAS Protozoans with pseudopods Shapeless “False foot”
Extensions of cytoplasm
Aid in movement & feeding
Shapeless

5. Phagocytosis

6. FLAGELLATES
Flagella - long, whip-like hairs

7. CILIATES
Cilia - tiny hairs
Includes:
Paramecium
Vorticella
Stentor

9. Plasmodium (causes Malaria)
SPOROZOANS
Produce spores
Parasitic protozoans
Malaria
Sleeping sickness
Trichomonas
Plasmodium (causes Malaria)

12. FUNGAL PROTISTS Slime molds
Unlike fungi, fungus-like protists are able to move and lack chitin in their cell walls.
Slime molds

13. FUNGAL PROTISTS
Slime molds
Water molds
Downy mildews

14. WATER MOLD
SLIME MOLD

15. ALGAE Plant-like protists Autotrophs
Lack true leaves, roots and stems
Autotrophs
Produce more than half the earth’s oxygen

16. Spirogyra
Volvox
Mixed green algae

17. ALGAE Photosynthesizing protists Contain chlorophyll Includes:
DIATOMS
Photosynthesizing protists
Contain chlorophyll
Includes:
Red, green, brown, golden algae
Diatoms - contain silica
Dinoflagellates

18. Algae in Your Foods “Seaweed” Foods:
broth, soups, seasons rice, added to salads, wrapped with sushi, rice crackers, flavors and preserves - noodles, bread, cheese, chocolate milk, creamed products, dairy desserts, dry mixes, evaporated milk, frozen food, fruit juice, ice cream, pudding, pasta, sauces and gravies, syrup,
Red Algae
Anti drying agent; food stabilizing and consistency, thickens, uniform texture
Brown Algae
Gel forming, suspending, emulsifying, film forming, thickens

19. RED ALGAE
BROWN ALGAE

20. DIATOMS

21. Dinoflagellates: known as “fire algae” (cause red tides)